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ADR525ARTZ-REEL7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
High Precision Shunt Mode
Voltage References
ADR520/ADR525/ADR530/ADR540/ADR550
Rev. E
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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
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Tel: 781.329.4700 www.analog.com
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FEATURES
Ultracompact SC70 and SOT-23-3 packages
Temperature coefficient: 40 ppm/°C (maximum)
2× the temperature coefficient improvement over the
LM4040
Pin compatible with the LM4040/LM4050
Initial accuracy: ±0.2%
Low output voltage noise: 14 μV p-p @ 2.5 V output
No external capacitor required
Operating current range: 50 μA to 15 mA
Industrial temperature range: −40°C to +85°C
APPLICATIONS
Portable, battery-powered equipment
Automotive
Power supplies
Data acquisition systems
Instrumentation and process control
Energy measurement
Table 1. Selection Guide
Part Voltage (V)
Initial
Accuracy (%)
Temperature
Coefficient
(ppm/°C)
ADR520A 2.048 ±0.4 70
ADR520B 2.048 ±0.2 40
ADR525A 2.5 ±0.4 70
ADR525B 2.5 ±0.2 40
ADR530A 3.0 ±0.4 70
ADR530B 3.0 ±0.2 40
ADR540A 4.096 ±0.4 70
ADR540B 4.096 ±0.2 40
ADR550A 5.0 ±0.4 70
ADR550B 5.0 ±0.2 40
PIN CONFIGURATION
ADR520/
ADR525/
ADR530/
ADR540/
ADR550
V
+
1
V–
2
TRIM
3
04501-001
Figure 1. 3-Lead SC70 (KS) and 3-Lead SOT-23-3 (RT)
GENERAL DESCRIPTION
Designed for space-critical applications, the ADR520/ADR525/
ADR530/ADR540/ADR550 are high precision shunt voltage
references, housed in ultrasmall SC70 and SOT-23-3 packages.
These references feature low temperature drift of 40 ppm/°C,
an initial accuracy of better than ±0.2%, and ultralow output
noise of 14 μV p-p.
Available in output voltages of 2.048 V, 2.5 V, 3.0 V, 4.096 V,
and 5.0 V, the advanced design of the ADR520/ADR525/
ADR530/ADR540/ADR550 eliminates the need for compensa-
tion by an external capacitor, yet the references are stable with
any capacitive load. The minimum operating current increases
from a mere 50 μA to a maximum of 15 mA. This low operating
current and ease of use make these references ideally suited for
handheld, battery-powered applications.
A trim terminal is available on the ADR520/ADR525/ADR530/
ADR540/ADR550 to allow adjustment of the output voltage
over a ±0.5% range, without affecting the temperature coefficient
of the device. This feature provides users with the flexibility to
trim out any system errors.
ADR520/ADR525/ADR530/ADR540/ADR550
Rev. E | Page 2 of 16
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configuration ............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
ADR520 Electrical Characteristics ............................................. 3
ADR525 Electrical Characteristics ............................................. 3
ADR530 Electrical Characteristics ............................................. 4
ADR540 Electrical Characteristics ............................................. 4
ADR550 Electrical Characteristics ............................................. 5
Absolute Maximum Ratings ............................................................6
Thermal Resistance .......................................................................6
ESD Caution...................................................................................6
Parameter Definitions .......................................................................7
Temperature Coefficient...............................................................7
Thermal Hysteresis .......................................................................7
Typical Performance Characteristics ..............................................8
Theory of Operation ...................................................................... 11
Applications ................................................................................ 11
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 14
REVISION HISTORY
6/08—Rev. D to Rev. E
Changes to Table 3 ............................................................................ 3
Changes to Table 4 and Table 5 ....................................................... 4
Changes to Table 6 ............................................................................ 5
Changes to Figure 4 .......................................................................... 8
Changes to Applications Section .................................................. 11
12/07—Rev. C to Rev. D
Changes to Figure 3 and Figure 5 ................................................... 8
Changes to Figure 15, Figure 16, and Figure 17 Captions ........ 10
Changes to Figure 23 ...................................................................... 12
Updated Outline Dimensions ....................................................... 13
8/07—Rev. B to Rev. C
Changes to Figure 21 ...................................................................... 11
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 14
1/06—Rev. A to Rev. B
Updated Formatting ........................................................... Universal
Changes to Features Section ............................................................ 1
Changes to General Description Section ....................................... 1
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 14
12/03—Data Sheet Changed from Rev. 0 to Rev. A
Updated Outline Dimensions ....................................................... 13
Change to Ordering Guide ............................................................ 14
11/03—Revision 0: Initial Version
ADR520/ADR525/ADR530/ADR540/ADR550
Rev. E | Page 3 of 16
SPECIFICATIONS
ADR520 ELECTRICAL CHARACTERISTICS
I
IN
= 50 μA to 15 mA, T
A
= 25°C, unless otherwise noted.
Table 2.
Parameter Symbol Conditions Min Typ Max Unit
Output Voltage V
OUT
Grade A 2.040 2.048 2.056 V
Grade B 2.044 2.048 2.052 V
Initial Accuracy V
OERR
Grade A ±0.4% −8 +8 mV
Grade B ±0.2% −4 +4 mV
Temperature Coefficient
1
TCV
O
−40°C < T
A
< +85°C
Grade A 25 70 ppm/°C
Grade B 15 40 ppm/°C
Output Voltage Change vs. I
IN
∆V
R
I
IN
= 0.1 mA to 15 mA 1 mV
−40°C < T
A
< +85°C 4 mV
I
IN
= 1 mA to 15 mA
−40°C < T
A
< +85°C 2 mV
Dynamic Output Impedance (∆V
R
/∆I
R
) I
IN
= 0.1 mA to 15 mA 0.27 Ω
Minimum Operating Current I
IN
−40°C < T
A
< +85°C 50 μA
Voltage Noise e
N p-p
0.1 Hz to 10 Hz 14 μV p-p
Turn-On Settling Time t
R
2 μs
Output Voltage Hysteresis ∆V
OUT_HYS
I
IN
= 1 mA 40 ppm
1
Guaranteed by design; not production tested.
ADR525 ELECTRICAL CHARACTERISTICS
I
IN
= 50 μA to 15 mA, T
A
= 25°C, unless otherwise noted.
Table 3.
Parameter Symbol Conditions Min Typ Max Unit
Output Voltage V
OUT
Grade A 2.490 2.500 2.510 V
Grade B 2.495 2.500 2.505 V
Initial Accuracy V
OERR
Grade A ±0.4% −10 +10 mV
Grade B ±0.2% −5 +5 mV
Temperature Coefficient
1
TCV
O
−40°C < T
A
< +85°C
Grade A 25 70 ppm/°C
Grade B 15 40 ppm/°C
Output Voltage Change vs. I
IN
∆V
R
I
IN
= 0.1 mA to 15 mA 1 mV
−40°C < T
A
< +85°C 4 mV
I
IN
= 1 mA to 15 mA
−40°C < T
A
< +85°C 2 mV
Dynamic Output Impedance (∆V
R
/∆I
R
) I
IN
= 0.1 mA to 15 mA 0.2 Ω
Minimum Operating Current I
IN
−40°C < T
A
< +85°C 50 μA
Voltage Noise e
N p-p
0.1 Hz to 10 Hz 18 μV p-p
Turn-On Settling Time t
R
2 μs
Output Voltage Hysteresis ∆V
OUT_HYS
I
IN
= 1 mA 40 ppm
1
Guaranteed by design; not production tested.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

ADR525ARTZ-REEL7

Mfr. #:
Buy ADR525ARTZ-REEL7
Manufacturer:
Analog Devices Inc.
Description:
Voltage References Shunt Mode 2.5V High Prec
Lifecycle:
New from this manufacturer.
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